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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-11-17 18:22:04 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-11-17 18:22:04 +1100 |
| commit | 71664fd8d2d2550a56cc6a9c2b81797bfe90d613 (patch) | |
| tree | 6f55e009ff6a8b00f9f1c7a905ad4075225dec93 /asm/asm-offsets.c | |
| parent | 31d20fc02c8ee7c12d84bc28ce732bbc362ce369 (diff) | |
| download | skiboot-71664fd8d2d2550a56cc6a9c2b81797bfe90d613.zip skiboot-71664fd8d2d2550a56cc6a9c2b81797bfe90d613.tar.gz skiboot-71664fd8d2d2550a56cc6a9c2b81797bfe90d613.tar.bz2 | |
Stack checking extensions
This patch adds:
- Normal builds are done with -fstack-protector (we want to investigate
using -fstack-protector-strong on gcc4.9 but for now we just use that
- Build with STACK_CHECK=1 will use -fstack-protector-all and -pg and
will check the stack in mcount
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'asm/asm-offsets.c')
| -rw-r--r-- | asm/asm-offsets.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/asm/asm-offsets.c b/asm/asm-offsets.c index e33c181..4fb2344 100644 --- a/asm/asm-offsets.c +++ b/asm/asm-offsets.c @@ -36,6 +36,10 @@ int main(void) OFFSET(CPUTHREAD_SAVE_R1, cpu_thread, save_r1); OFFSET(CPUTHREAD_STATE, cpu_thread, state); OFFSET(CPUTHREAD_CUR_TOKEN, cpu_thread, current_token); + DEFINE(CPUTHREAD_GAP, sizeof(struct cpu_thread) + STACK_SAFETY_GAP); + OFFSET(CPUTHREAD_STACK_BOT_MARK, cpu_thread, stack_bot_mark); + OFFSET(CPUTHREAD_STACK_BOT_PC, cpu_thread, stack_bot_pc); + OFFSET(CPUTHREAD_STACK_BOT_TOK, cpu_thread, stack_bot_tok); OFFSET(STACK_TYPE, stack_frame, type); OFFSET(STACK_LOCALS, stack_frame, locals); |